Considering that you can't really use music streaming with the usual caps here (200MB, 500MB, 1GB, 3GB), it makes it impossible to compete with Spotify, unless

Considering that you can't really use music streaming with the usual caps here (200MB, 500MB, 1GB, 3GB), it makes it impossible to compete with Spotify, unless you also pay DT. Therefore, in the context of mobile, all other music streaming services are essentially throttled when compared to "exclusive partners of DT."